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Re: A proposal for draft-ietf-6man-rfc4291bis-07

james woodyatt <jhw@google.com> Fri, 03 March 2017 19:05 UTC

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From: james woodyatt <jhw@google.com>
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Subject: Re: A proposal for draft-ietf-6man-rfc4291bis-07
Date: Fri, 03 Mar 2017 11:05:20 -0800
References: <CAN-Dau17q_BrUuzfvB1mLDt6p5UxYikphWaHpa8VQ2L-3kx-DA@mail.gmail.com> <96a5dfe9-0122-0f8c-5ad3-f98dc1867f25@gmail.com> <CAN-Dau3rKf1vqb3Fb7emJ75iJ+nTC-Vu=Ude--A0bDV-P8Bcpg@mail.gmail.com> <99749605-50a7-0920-9ace-2c0278efc750@gmail.com> <CA94CBB8-115E-4842-8F38-EA58DF5104E8@google.com> <101927d0-7b76-ce96-29e4-57b63297bb9f@gmail.com>
To: Alexandre Petrescu <alexandre.petrescu@gmail.com>, 6man WG <ipv6@ietf.org>
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On Mar 3, 2017, at 10:14, Alexandre Petrescu <alexandre.petrescu@gmail.com> wrote:
> Le 03/03/2017 à 19:12, james woodyatt a écrit :
>> On Mar 3, 2017, at 02:28, Alexandre Petrescu
>> <alexandre.petrescu@gmail.com <mailto:alexandre.petrescu@gmail.com>> wrote:
>>> 
>>> So one wonders why64?  One source is this EUI-64 originated at IEEE.
>>> Then 'Modified' EUI-64 at IETF.  Yet EUI-64 is no longer. It was
>>> designed to replace 48bit MACs.  It did not succeed: we dont see
>>> 'EUI-64' on Ethernet-based devices, we continue to see 48bit MAC
>>> addresses even on non-Ethernet devices.  But we hear about EUI-128,
>>> which would obviously couldnt work with IPv6.
>> 
>> IEEE 802.15.4 is not remotely dead, and it uses EUI-64, not EUI-48.
> 
> But do I see "EUI-64" printed on some 802.15.4 device?  Or do I see a 48bit MAC address?


The MAC address printed on IEEE 802.15.4 devices are 64 bits not 48 bits.


--james woodyatt <jhw@google.com <mailto:jhw@google.com>>

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